Out-of-bounds Write Affecting kernel-rt-kvm package, versions <0:3.10.0-1160.rt56.1131.el7


Severity

0.0
high
0
10

    Threat Intelligence

    EPSS
    3.89% (92nd percentile)

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  • Snyk ID SNYK-CENTOS7-KERNELRTKVM-2175595
  • published 26 Jul 2021
  • disclosed 9 Jun 2020

How to fix?

Upgrade Centos:7 kernel-rt-kvm to version 0:3.10.0-1160.rt56.1131.el7 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-kvm package and not the kernel-rt-kvm package as distributed by Centos. See How to fix? for Centos:7 relevant fixed versions and status.

An out-of-bounds memory write flaw was found in how the Linux kernel’s Voice Over IP H.323 connection tracking functionality handled connections on ipv6 port 1720. This flaw allows an unauthenticated remote user to crash the system, causing a denial of service. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

CVSS Scores

version 3.1
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Snyk

8.1 high
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    High
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High
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NVD

8.1 high
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Red Hat

8.1 high